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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. Trailer Hitch Wiring
  5. No Tow Package
  6. Vehicle End Connector
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
CURT

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Part Number: C56327
In Stock
$67.66
Retail:$106.95
You Save: 37%
Custom Fit Vehicle Wiring

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56327 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (199)
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CURT Custom Fit Vehicle Wiring - C56327

  • 4 Flat
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • CURT
  • Plug-In
  • Powered Converter
  • Plug and Lead
  • Hidden

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes powered tail light converter that connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3.0 amps per circuit
    • Tail lights: 6.0 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, behind the driver's-side and passenger's-side tail lights. You will have to remove the rear scuff panel to access these connection points. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.


Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.


Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.


Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.



56327 CURT T-Connector - Surface Mount Technology - 4 Wire

Replaces Curt C56249

Installation Details C56327 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

199 reviews
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

by:
ford Transit Connect

This is easiest wiring harness I have had to install on my Ford Transit. I will definitely be always using etrailer from now on, for all my wiring harness needs.



by:

Easy to install. Everything needed in the box and in good shape. Took about a half hour to install the wires to the tail lights. Haven’t tried it yet but fell comfortable that it will. I always buy from etraiier because they carry good quality products, give you video instructions and deliver the products in a timely manner in good condition.



by:

My whole purchasing experience with this company was excellent. Customer service was great and product was exactly what I needed. Instructions for self install were precise and easy to understand. great experience.



by:
2025 Ford Transit T250

Wires to go from taillight to taillight are short. The video of the install even shows they are short. Simple fix and it’s a 5 star rating.



by:

Worked great and installation was simple to follow
Thanks



by:

Good instructions. All worked as planne d.



by:
2017 Ford Transit T150

This is an easy to install kit, and the install video made it even simpler. I chose to mount my wiring on the left doorpost, where it can easily be pulled out through the rear door weatherstripping when needed. I was able to keep all wiring inside the van compartment and frame rails. Two hopefully helpful comments:
* In order to mount to the door rail, it is necessary to splice in a couple of feet of wire to the green wire between the two light buckets. By cutting this wire, I was able to snake it through the frame tubing under floor behind the rear door latch. I did not have any wiring outside the vehicle.
* There is a wiring lug available on the side of the driver's seat, adjacent to the battery compartment, which may be a more convenient lug to attach the hot wire to. The video shows running the wire all the way to the engine compartment.
Best of luck.



by:

This wiring kit fit perfectly, and having watched the install video previously made me look like I had installed a hundred of them. My customer chose to wait while I installed this and the hitch, and the whole process couldn't have gone smoother.



by:

Worked just as advertised. Video tutorial was super detailed and made it easy to install.



by:
2020 Ford Transit T350

Liked the kit but found a better way to install without cutting grommets. Mounted below drivers side tail light. See pics. Power wire was run all the way to the fuse box under hood instead of battery under drivers seat. This kept all wiring outside keeping all grommet seals intact, and saving time on removal of interior panels which are difficult with 15 passenger seating still installed.



by:

Neither instructions nor installation video mentioned socket for metric bolts. Pliers are a simpler way to install 1/2 inch bolts than snake wires. Otherwise, installation was straightforward--a one person job with ratchet straps instead of a second set of arms.



by:

Arrived new in about 4 days. Great expe rience.



by:
2021 Ford Transit T350

Easy to install and works great
Thank
you guys



by:

The harness is what you want to order. It makes for a clean, fast wiring experience. Two more butt connectors would finish the job, but as is the kit is nice.



by:

Great service, excellent product at a fair price!



by:

Good quality very helpful sales staff



by:

Great product Plug and Play already have my hitch on couldn't be happier. Thank you guys



by:
2023 Ford Transit T250

Easy install.



by:
Ford

Our previously installed harness quit working. Something got fried inside the converter. The part we ordered from etrailer was literally a snap to install and works exactly as it should. So my trailer lights are back in business! The price was right, shipping time was acceptable and it took me about an hour to remove the old harness and install the new.

Regarding installation on a Ford Transit: I've seen several comments about the difficulty of making connection to the battery, which is under the drivers seat. Our van has a remote positive terminal in the engine bay to make jump starting easier. Our original harness was wired to this terminal, so I just kept the wiring in place.

Mark M. profile picture

Mark M.

2/3/2020

Still working as advertised. No issues at all.



by:
2018 Ford Transit T150

Very easy to install



by:
2022 Ford Transit T350

This item was placed inside box with hitch receiver. When I got it the package was crushed, and the little converter box was cracked. It works but I was disappointed.



by:

All the staff are very helpful !!



by:
2021 Ford Transit T350

E-trailer is the one stop shop for everything trailer!!! The hitch works perfectly on our church van



by:

The only issue I had to deal with was mounting the harness box. I eventually gave up and used a wire tie to mount to existing hole. 44° may have been the issue with the double stick tape?
Other than my vehicle's panels and battery under driver's seat, the install went well.

Robert P. profile picture

Robert P.

3/8/2023

I actually have not used the hitch yet. This is on a 350 Transit, I used once to haul my Indian. After installing one on my Cherokee, for the money, I had to put one on this too.



by:

The trailer hitch is working just great, It was easy to install if I remember right we did have to do some drilling but no big deal.


25
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123. . .6




Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Amanda M
Written by:
Amanda M
Employee Jonathan Y
Video by:
Jonathan Y
Employee Thomas T
Video by:
Thomas T
Employee Samuel H
Video by:
Samuel H
Employee Rick G
Video by:
Rick G
Employee Joshua U
Video by:
Joshua U
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Jacob H
Test Fit:
Jacob H
Employee Ryan G
Test Fit:
Ryan G
Employee Bradley B
Test Fit:
Bradley B

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